Recent questions tagged ruby

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ruby on rails - habtm relationship does not support :dependent option

Is it true that HABTM relationships do not support the :dependent option? class Person < ActiveRecord::Base ... am trying rails edge. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - What would a default getter and setter look like in rails?

I know that I can write attr_accessor :tag_list to make a virtual attribute tag_list for an object in Rails. This ... end This does NOT work. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - Rails: Unpermitted parameter in Rails 5

First of all I want simply get an object inside the current object that I'm sending to my backend. I have ... someone have a solution for this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - Rails3 Devise undefined method `confirmation_url'

I've seemingly set up Devise for my User authentication, with the :confirmable option set. Everything seems to run fine ... with devise 1.4.5. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - Doing a Http basic authentication in rails

Hi I'm from Grails background and new to Rails. I wish to do http basic authentication in rails. I have a code ... the same be done with rails? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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547 views

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ruby - How to format a number 1000 as "1 000"

I need a way to format numbers. I stored some numbers in my DB table, e.g. 12500, and would like to print ... there an elegant way to do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - Hash ordering preserved between iterations if not modified?

If I iterate over a hash once, then do so again without modifying the contents, are the keys guaranteed ... provide the same sequence. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - rake assets:precompile attempting to connect to database

I'm attempting to debug why my application is attempting to connect to my database when I run rake assets:precompile --trace. I'm ... /Kyle/.rvm/rubies/ruby-1.9.2-p290/bi...] /Use...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - pry gem how to reload?

I am using the Pry gem in my Rails console, but the pry flavored rails-console seems to have lost the ... -r ./config/environment Thank You See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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650 views

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ruby on rails - How to pass variables to render_to_string?

Trying to do the following @message = render_to_string ( :sender => sender, :template => "template" ) ... pass variables to render_to_string? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - One controller rendering using another controller's views

I have QuestionController I now have AnotherQuestionController with actions which should render using templates and partials ... way). Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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581 views

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ruby on rails - Using God to monitor Unicorn - Start exited with non-zero code = 1

I am working on a God script to monitor my Unicorns. I started with GitHub's examples script and have ... preventing this script from working? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - Rubygems do not install on OS X Lion

I used to have no problems at all with ruby, gems and all related stuff. But after installing X Code Developer Tools ... wrong? How to fix it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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573 views

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ruby - Apply method to each elements in array/enumerable

This is my array: array = [:one,:two,:three] I want to apply to_s method to all of my array elements ... of the enumerable to something else)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby - Rails: Is Date.today in UTC?

Calling Date.today in Ruby returns the current date. However, what timezone is it in? I assume UTC, but I ... doesn't state either way. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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576 views

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ruby on rails - How to say "any_instance" "should_receive" any number of times in RSpec

I've got an import controller in rails that imports several csv files with multiple records into my database. I ... or is there any workaround? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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554 views

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ruby on rails - Easy way of posting on Facebook page (not a profile but a fanpage)

Which option is the best and easy way to post text or some other content on a Facebook page? I'm looking for ... - #{shorted_url}") end Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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476 views

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ruby on rails - How to use JQuery-File-Upload to upload multiple images on one page during creating post?

I realized that there isn't a solution using jQuery-File-Upload and Carrierwave or Dragonfly to make ability on ... to get something like this: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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480 views

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ruby - How can I randomly iterate through a large Range?

I would like to randomly iterate through a range. Each value will be visited only once and all values will ... assuming f(x) returns x See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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576 views

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ruby - Jekyll - generating JSON files alongside the HTML files

I'd like to make Jekyll create an HTML file and a JSON file for each page and post. This is to offer a JSON ... two sets of files side-by-side? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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515 views

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ruby on rails - Same instance variable for all actions of a controller

I have a rails controller with two actions defined: index and show. I have an instance variable defined in index ... in show.html.erb template? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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515 views

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ruby on rails 3.1 - Heroku logging not working

I've got a rails 3.1 app deployed on Heroku Cedar. I'm having a problem with the logging. The default ... works. Has anyone else seen this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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ruby on rails - How do I validate members of an array field?

I have this model: class Campaign include Mongoid::Document include Mongoid::Timestamps field :name, :type => String ... you show me a pointer? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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573 views

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ruby - How to switch to an older version of rails

I'm trying to follow an older book written in 2011. So, randomly picked 3.1.3 version since that's Nov 2011. How ... **-s-MacBook-Pro:agile **$ See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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622 views

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ruby on rails - Callback for changed ActiveRecord attributes?

I am aware of ActiveRecord::Dirty and the related methods, but I don't see a means by which I can subscribe to ... and I'm just missing it. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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650 views

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ruby - rails 3:how to generate models for existing database tables

I've configured my database.yml to point to my existing mysql database how can I generate models from it? rails ... only gives an emty model.. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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747 views

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ruby - Rails Migration changing column to use Postgres arrays

I am trying to change a column in my database so that it can use the Postgres array data type. Currently the ... ) Tasks: TOP => db:migrate See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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564 views

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ruby on rails - Sprockets::CircularDependencyError in Store#index

I am following the manual Agile Web Development with Rails 4th edition and I have a problem with sprocket css in ... error. Thank you very much. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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